Electric skateboard



FIG. 1 is a front perspective view of an electric skateboard showing my design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof, opposite the view of FIG. 2;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof, opposite the view of FIG. 4;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof, opposite the view of FIG. 6.

The broken lines shown are included for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for an electric skateboard, as shown and described. 